Abstract: A conductive adhesive is provided useful for providing electrically conductive joints in joins between panels, particularly conductive carbon composite panels in a WESP, is prepared from a corrosion resistant resin and particulate carbon black which is uniformly dispersed in the resin.
Abstract: A method for preparing a negative electrode material of a lithium ion battery is provided. In the method, a solvent-thermal reaction of a graphite material and a modifier precursor in an organic solvent is conducted to form a reaction product. And then, the reaction product is dried. Next, a heat treatment is applied to the dried reaction product to obtain the negative electrode material. The negative electrode material prepared by the method has improved cycle stability and high current performance.
Abstract: Metal nanowires with high linearity can be produced using metal salts at a relatively low temperature. A transparent conductive film can be formed using the metal nanowires. Particularly, the transparent conductive film has high transmittance, low sheet resistance, and good thermal, chemical and mechanical stability. The transparent conductive film has a high electrical conductivity due to the high linearity of the metal nanowires. The metal nanowires take up 5% or less of the volume of the transparent conductive film, ensuring high transmittance of the transparent conductive film. Furthermore, the metal nanowires are useful as replacements for existing conductive materials, such as ITO, conductive polymers, carbon nanotubes and graphene. The metal nanowires can be applied to flexible substrates and other various substrates due to their good adhesion and high applicability to the substrates. Moreover, the metal nanowires can find application in various fields, such as displays and solar cell devices.
Type:
Grant
Filed:
February 23, 2012
Date of Patent:
April 7, 2015
Assignee:
Korea Institute of Science and Technology
Abstract: A lithium ion secondary battery has a high cycle retention rate, and has its battery capacity increased. A positive electrode active material is used which includes a crystal phase having a structure formed by collecting a plurality of crystallites, and powder particles containing amorphous phases and formed between the crystallites. The amorphous phases and contain one or more kinds of metal oxides selected from the group consisting of vanadium oxide, iron oxide, manganese oxide, nickel oxide and cobalt oxide. The crystal phase and the amorphous phase and are capable of intercalation and deintercalation of lithium ions.
Abstract: A conductive adhesive includes 10 to 90 wt % of Sn—Bi system solder powder and the remainder of an adhesive containing organic acid, and the Sn—Bi system solder powder is composed of solder particles having a particle size L1 of 20 to 30 ?m and solder particles having a particle size L2 of 8 to 12 ?m, and a mixing ratio of the Sn—Bi system solder powder is such that the solder particles having a particle size of 20 to 30 ?m occupy 40 to 90 wt % with respect to the whole solder powder, and the remainder is occupied by solder particles having a particle size of 8 to 12 ?m.
Abstract: An electrode material to be used for producing an earth electrode of a spark plug has a chemical composition of 0.3 to 3.0 mass % of Si, 0.01 to 0.3 mass % of one or more elements selected from the group consisting of Y and rare earth elements, not more than 0.5 mass % of Ti, not more than 1.2 mass % of Fe, and one or both of not more than 0.20 mass % of Ca and not more than 0.08 mass % of Mg. The electrode material further contains C, Mn, Cr, Al, N, S, a remainder Ni, and incidental impurities. In a total content of C, Mn, Cr, Al, N and S, C is not more than 0.1 mass %, Mn is less than 0.5 mass %, Cr is less than 0.5 mass %, Al is not more than 0.3 mass %, N is not more than 0.05 mass %, and S is not more than 0.03 mass %.
Abstract: Disclosed are a multi-functional resin composite material including (A) a thermoplastic resin, (B) a nickel-coated carbon fiber, (C) a carbon nanotube, and (D) an inorganic material having a volume resistance of about 10?3 ?·m or less and a relative permeability of about 5000 or more, and a molded product fabricated using the same.
Abstract: This invention discloses a solution-based synthesis of cesium tin tri-iodide (CsSnI3) film. More specifically, the invention is directed to a solution-based spray-coating synthesis of cesium tin tri-iodide (CsSnI3) thin films. This invention is also directed to effective and inexpensive methods to synthesize the thin CsSnI3 films on large-area substrates such as glass, ceramics, glass, ceramic, silicon, and metal foils. CsSnI3 films are ideally suited for a wide range of applications such as light emitting and photovoltaic devices.
Abstract: The invention relates to electroplating additives for the deposition of a group IB metal/binary or ternary group IB-group IIIA/ternary, quaternary or pentanary group IB-group IIIA-group VIA alloy on substrates useful for thin film solar cells. The additives are thiourea compounds or derivatives which have the general formula (A): wherein X1 and X2 may be the same or different and are selected from the group consisting of arylene and heteroarylene; FG1 and FG2 may be the same or different or are selected from the group consisting of —S(O)2OH, —S(O)OH, —COOH, —P(O)2OH and primary, secondary and tertiary amino groups and salts and esters thereof; R is selected from the group consisting of alkylene, arylene or heteroarylene and n and m are integers from 1 to 5.
Abstract: The invention comprises the method of growing lead chalcogenide nanocrystals from the surface of titanium dioxide in organic solvents, lead chalcogenide/TiO2 nanocomposites colloids produced by the claimed method, and the application of lead chalcogenide/TiO2 nanostructures as an active absorbing element in nanocrystal-sensitized solar cells.
Abstract: A method of manufacturing nickel electrode for a nickel-zinc battery includes the steps of: providing a nickel oxyhydroxide (NiOOH) and a nickel metal; adding a first additive consisting of transition metal oxide to the nickel oxyhydroxide and the nickel metal; and adding a binder for combining the first additive to the nickel oxyhydroxide and the nickel metal, wherein the first additive contains one or more transition metal oxides selected from a group consisting of ruthenium oxide (RuO2) and rhodium oxide (RhO2). Metal oxide or hydroxide with a rare earth oxide improves the electrode capacity and shelf life. Zinc oxide is added to the cathode to facilitate charger transfer and improve the characteristics of high rate discharging. The cathode significantly increases the charging efficiency, promotes the overpotential of oxygen evolution, and intensifies the depth of discharging, thereby increasing the overall efficiency and lifespan of the battery.
Abstract: Disclosed are conductive composites prepared from ionic liquids, compositions for preparing the composites, and methods of making and using the composites.
Type:
Grant
Filed:
July 19, 2010
Date of Patent:
July 22, 2014
Assignee:
Board of Trustees of the University of Alabama
Inventors:
Scott K. Spear, Daniel T. Daly, Rachel M. Frazier, Robin D. Rogers, Anwarul Haque
Abstract: A sputtering target containing oxides of indium (In), gallium (Ga) and zinc (Zn), which includes a compound shown by ZnGa2O4 and a compound shown by InGaZnO4.
Type:
Grant
Filed:
November 30, 2007
Date of Patent:
July 22, 2014
Assignee:
Idemitsu Kosan Co., Ltd.
Inventors:
Kazuyoshi Inoue, Koki Yano, Futoshi Utsuno
Abstract: Disclosed are aluminum paste compositions, processes to form solar cells using the aluminum paste compositions, and the solar cells so-produced. The aluminum paste compositions comprise 0.003% to 9%, by weight of boron nitride; 27% to 89%, by weight of an aluminum powder, such that the weight ratio of aluminum powder to boron nitride is in the range of 9:1 to 9909:1; and 0.1% to 9%, by weight of an optional glass frit-free additive, the optional glass frit-free additive comprising amorphous silicon dioxide, crystalline calcium oxide organometallic compounds, metal salts, or mixtures thereof; and 10% to 70%, by weight of an organic vehicle, wherein the amounts in % by weight are based on the total weight of the aluminum paste composition.
Abstract: A tablet for vapor deposition characterized in that on a fracture surface of an indium oxide sintered body, the percentage of crystal grains having a grain diameter corresponding to a highest peak is 20% or less. The tablet is produced by: mixing indium oxide powder and cerium oxide powder, and subjecting the mixture to a heat treatment at 1300° C. to 1550° C. to calcine; mixing an uncalcined indium oxide powder and/or an uncalcined cerium oxide powder with the obtained calcined powder such that the ratio of the calcined powder is 50% to 80% by mass, followed by granulation; and molding the obtained granulated powder, thereby forming a molded body, and then sintering the molded body at a temperature which is 1100° C. to 1350° C., and which is lower than the temperature of the heat treatment on the calcined powder in the first step by 20° C. or more.
Abstract: Functionalized carbon nanotubes and dispersions containing functionalized carbon nanotubes are provided. Exemplary functionalized carbon nanotubes include optionally substituted indene-based moieties. Methods of making functionalized carbon nanotubes and dispersions containing functionalized carbon nanotubes are provided. Methods of making conductive carbon nanotube dispersions, including films, are provided. Such methods include heating carbon nanotubes in a solvent in the absence of externally applied energy, to obtain an adduct that includes the solvent moiety bound to the carbon nanotube. Where the solvent includes an indene-based compound, the carbon nanotube thus prepared includes optionally indene-based moieties bound to the carbon nanotubes.
Abstract: A Cu—In—Zn—Sn—(Se,S)-based thin film for a solar cell and a preparation method thereof, and more particularly, to a Cu—In—Zn—Sn—(Se,S)-based thin film for a solar cell which can reduce an amount of In to be used and exhibit an excellent conversion efficiency and a preparation method thereof.
Type:
Grant
Filed:
November 8, 2010
Date of Patent:
June 10, 2014
Assignee:
Korea Institute of Energy Research
Inventors:
Jae-Ho Yun, Kyung-Hoon Yoon, Sejin Ahn, Jihye Gwak, Kee-Shik Shin, Kyoo-Ho Kim, Jin-Hyeok Kim
Abstract: A method for preparing a Li4NbxTi5-xO12/C nanocomposite as anode material for lithium-ion batteries is disclosed, which includes the following steps: (a) obtaining a mixture of a lithium salt, niobium pentaoxide, titanium dioxide (TiO2), and a carbon source in a selected stoichiometric ratio; (b) mixing the mixture in a dispersant to produce a slurry; (c) drying the slurry to produce a dried mixture; (d) treating the dried mixture under a protective atmosphere, according to a heating program to produce the Li4NbxTi5-xO12/C nanocomposite, wherein the heating program comprises: calcining the dried mixture at 600° C. for 2-6 hours, heating it at a rate of 2-20° C. per minute to 950-980° C., cooling it by natural cooling to 800-850° C., maintaining the temperature at 800-850° C. for 16 hours, and cooling it by natural cooling to room temperature.
Type:
Grant
Filed:
May 31, 2012
Date of Patent:
May 27, 2014
Assignee:
Hefei Guoxuan High-Tech Power Energy Co., Ltd.
Abstract: A method for enhancing the lithium-ion capacity of a doped silicon carbide is disclosed. The method utilizes heat treating the silicon carbide in an inert atmosphere. Also disclosed are anodes for lithium-ion batteries prepared by the method.
Type:
Grant
Filed:
April 26, 2012
Date of Patent:
May 27, 2014
Assignee:
Northwestern University
Inventors:
Mark C. Hersam, Albert L. Lipson, Sudeshna Bandyopadhyay, Hunter J. Karmel, Michael J. Bedzyk